When someone sets their butt on something, such as a TV remote and gets it stuck between their butt crack.
Brian: Yo, Dan nice butt sandwich.
Dan: Oh fuck! I sat on the remote again didn't I? I knew my ass felt weird.
Dan: Oh fuck! I sat on the remote again didn't I? I knew my ass felt weird.
by nateman89 March 4, 2011
Get the Butt Sandwichmug.